hi you got me well worried now....
firstly the airbag does look as if the cover of it has been pulled off as it does not sit in flush with the rest of the steering wheel but then there is no message saying the airbag has been opened, as id expect it should say that, secondly do u just pull the small air flow grill bit in the bottom right of the bumper as u look head on does it just pull out any danger of breaking the clips .
also do u think if i took it to VW dealership they coulf fix the atibag cover, the sensor and the rear window heater button as that is pushed in and stays on all the time.
i also did a AA data check on the car and it did not report any accidents unless ofcourse he did a diy job!